Patents by Inventor Richard J. Raridon

Richard J. Raridon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for generating a highly reactive plasma for exhaust gas aftertreatment and enhanced catalyst reactivity
    Patent number: 6422002
    Abstract: A method for non-thermal plasma aftertreatment of exhaust gases the method comprising the steps of providing short risetime, high frequency, high power bursts of low-duty factor microwaves sufficient to generate a plasma discharge and passing a gas to be treated through the discharge so as to cause dissociative reduction of the exhaust gases and enhanced catalyst reactivity through application of the pulsed microwave fields directly to the catalyst material sufficient to cause a polarizability catastrophe and enhanced heating of the metal crystallite particles of the catalyst, and in the presence or absence of the plasma. The invention also includes a reactor for aftertreatment of exhaust gases.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: July 23, 2002
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: John H. Whealton, Gregory R. Hanson, John M. Storey, Richard J. Raridon, Jeffrey S. Armfield, Timothy S. Bigelow, Ronald L. Graves
  • Method for generating a highly reactive plasma for exhaust gas aftertreatment and enhanced catalyst reactivity
    Patent number: 6190507
    Abstract: A method for non-thermal plasma aftertreatment of exhaust gases the method comprising the steps of providing short risetime (about 40 ps), high frequency (about 5G hz), high power bursts of low-duty factor microwaves sufficient to generate a dielectric barrier discharge and passing a gas to treated through the discharge so as to cause dissociative reduction of the exhaust gases. The invention also includes a reactor for generating the non-thermal plasma.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: February 20, 2001
    Assignee: The United States of America as represented by the Department of Energy
    Inventors: John H. Whealton, Gregory R. Hanson, John M. Storey, Richard J. Raridon, Jeffrey S. Armfield, Timothy S. Bigelow, Ronald L. Graves